Tenders are invited for Reagents and consumables for performing hematological, general clinical, biochemical and bacteriological studies; chemical indicators; eosin water-alcohol (or analog),
hematoxylin Harris (or analog); azopyrum (or analog)
A: On
hematoxylin and eosin staining the pleomorphic adenoma contains islands of hyaline to myxoid cartilage admixed with tubules, glands, and cords composed of uniform epithelial cells (original magnification x4).
Caption: (L-R) Hans Gerhard Creutzfeldt (18851964); Alfons Maria Jakob (1884-1931); Creutzfeldt-Jakob disease, cerebrum
hematoxylin and eosin staining showing spongiform encephalophathy.
Sections were stained with
hematoxylin and eosin, and immunohistochemical staining (IHC) was performed using a biotin-peroxidase system, with labeling of the secondary antibody with a polymer (Advance HRP enzyme, Dako North America Inc.
Portions of liver were fixed in 10% neutral buffered formalin, embedded in paraffin, sectioned for light microscopy, and stained with
hematoxylin and eosin, Ziehl-Neelsen acid fast, and the periodic acid-Schiff (PAS) stain.
Caption: FIGURE 3: (a)
Hematoxylin and eosin stained section demonstrating giant cells and mononuclear cells embedded within a collagenous matrix (600 x).
4]
Hematoxylin, which is obtained from the Mexican tree Haematoxylon campechianum, is an example of a natural dye that is widely used in histology and histochemistry, while eosin is a synthetic dye also used in histology.
Hematoxylin and eosin stains showed nests of cells with eosinophilic cytoplasm separated by a hyalinized stroma, with no evidence of anaplasia or invasion, consistent with a Paraganglioma.
The assessment of cervical tissue samples has been traditionally done using the slide-based
hematoxylin and eosin (H&E) stain, but the method of interpretation is subjective and there is diagnostic variability from pathologist to pathologist.
For general purposes, bicomponent staining of eosin with Weigert's iron, Harris's or Ehrlich's
hematoxylin have also reported good results in anemones.
Some neoplastic cells also presented evidence of scant cytoplasmic cross-striations visible at histologic sections stained by
hematoxylin and eosin and phosphotungstic acid
hematoxylin.
In the present work, light microscopy preparations stained with
hematoxylin and eosin, silver impregnated, and Transmission Electron Microscopy (TEM) were used in order to evaluate the functional state of the nuclei of each ovarian cells follicle in queens of Apis mellifera (Linnaeus, 1758), throughout the developmental progress of the vitellogenesis.
